16433330627809 has 2 divisors, whose sum is σ = 16433330627810. Its totient is φ = 16433330627808.

The previous prime is 16433330627743. The next prime is 16433330627821. The reversal of 16433330627809 is 90872603333461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9021612960000 + 7411717667809 = 3003600^2 + 2722447^2 .

It is an emirp because it is prime and its reverse (90872603333461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16433330627809 - 2⁹ = 16433330627297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16433330627809.

It is not a weakly prime, because it can be changed into another prime (16433330627009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8216665313904 + 8216665313905.

It is an arithmetic number, because the mean of its divisors is an integer number (8216665313905).

Almost surely, 2^{16433330627809} is an apocalyptic number.

It is an amenable number.

16433330627809 is a deficient number, since it is larger than the sum of its proper divisors (1).

16433330627809 is an equidigital number, since it uses as much as digits as its factorization.

16433330627809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11757312, while the sum is 55.

The spelling of 16433330627809 in words is "sixteen trillion, four hundred thirty-three billion, three hundred thirty million, six hundred twenty-seven thousand, eight hundred nine".